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The biggest users of both networks were those aged between 16-24, with 43 per cent of this group admitting to never going a day without social media due to the ‘Fear of missing out’ culture known as FOMO.

Dr Nerina Ramlakhan of Silentnight said: “Social networks are definitely causing a heightened feeling of FOMO, particularly with the younger generation who are so used to seeing their social lives played out online and often rely on validation from likes and shares.

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Social media trolling

“With Snapchat in particular, snaps are only there for 24 hours and then they are gone, making it all the more tempting to keep checking the app so as not to miss out. It’s easy to see why this habit is creeping into bedtime routines.”

More than 40 per cent of all Britons claim to be addicted to social media - checking sites more than eight times a day, racking up nearly three hours on the networks, and 20 per cent of people were so preoccupied with social media they actually ‘dreamt’ about it.

The man can be heard telling 999 call handlers: "My Snapchat's not working."